This feature is particularly helpful if you have textured hair with waves or curls, which can become damaged so easily by heated styling tools. That said, it is not clear which heat setting is ideal for users with thick or somewhat straight hair. This may make this slightly more difficult if you are using a flat iron for curling purposes or if you need to straighten an especially thick head of hair each day! However, we are confident that a little tinkering is all it takes to find the perfect heat setting for these different hair types and styles, so you can rest assured that this hair straightener can still meet all your hair styling needs!

The Bio Ionic worked well on all of our testers’ hair, but it’s best on drier hair with a medium thickness. We spritzed testers’ hair with some keratin smoothing treatment, but the Bio Ionic did a lot of the heavy lifting to make our hair feel softer. The tool gets hot, but not too hot to grip, and it excels at creating the silky volume you want without making your hair pin-straight and flat. One tester put it perfectly: “[The Bio Ionic] is the Rumplestiltskin of hair straighteners. It’s turning straw into gold.”
The CHI brand has long been one of the most popular for hair straighteners and flat irons, and for good reason – their products work well and they work quickly. The CHI Original Pro 1” Ceramic Tourmaline Flat Iron is no different. Thanks to its durable build, quality craftsmanship, and leading tourmaline-infused ceramic plates, this is the last hair straightener that you will need to buy for a long time.
Twist And Curl – The awesome folks at Good Housekeeping couldn’t have put it better than this: curling your hair with a flat iron is like curling ribbon with a pair of scissors. To do this, simply clamp your hair straightener around a piece of hair as you normally would when straightening, except flip the entire tool, so your hair is now wrapped around one of the plates. Holding the tip of your hair for support, simply glide the straightener down the entire length of hair and just like magic, you’ve made a curl!

Eight embedded sensors regulate and evenly distribute the heat on this ceramic iron, minimizing damage and increasing shine and smoothness. With adjustable temperature settings that go as low as 140 degrees (the coolest we've ever seen), it's ideal for anyone with super fine hair, or to smooth out the tiny frizzies around your hairline. It also comes with a lifetime warranty, which is never a bad thing.

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